scpi-pps: Add a missing "break" in config_get().
[libsigrok.git] / src / hardware / appa-55ii / api.c
1 /*
2  * This file is part of the libsigrok project.
3  *
4  * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 #include <config.h>
21 #include <string.h>
22 #include "protocol.h"
23
24 static const uint32_t scanopts[] = {
25         SR_CONF_CONN,
26         SR_CONF_SERIALCOMM,
27 };
28
29 static const uint32_t drvopts[] = {
30         SR_CONF_THERMOMETER,
31 };
32
33 static const uint32_t devopts[] = {
34         SR_CONF_CONTINUOUS,
35         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
36         SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
37         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
38 };
39
40 static const char *data_sources[] = {
41         "Live",
42         "Memory",
43 };
44
45 static GSList *scan(struct sr_dev_driver *di, GSList *options)
46 {
47         struct dev_context *devc;
48         struct sr_serial_dev_inst *serial;
49         struct sr_dev_inst *sdi;
50         struct sr_config *src;
51         GSList *devices, *l;
52         const char *conn, *serialcomm;
53         uint8_t buf[50];
54         size_t len;
55
56         len = sizeof(buf);
57         devices = NULL;
58         conn = serialcomm = NULL;
59         for (l = options; l; l = l->next) {
60                 src = l->data;
61                 switch (src->key) {
62                 case SR_CONF_CONN:
63                         conn = g_variant_get_string(src->data, NULL);
64                         break;
65                 case SR_CONF_SERIALCOMM:
66                         serialcomm = g_variant_get_string(src->data, NULL);
67                         break;
68                 }
69         }
70         if (!conn)
71                 return NULL;
72         if (!serialcomm)
73                 serialcomm = "9600/8n1";
74
75         serial = sr_serial_dev_inst_new(conn, serialcomm);
76
77         if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
78                 return NULL;
79
80         sr_info("Probing serial port %s.", conn);
81
82         serial_flush(serial);
83
84         /* Let's get a bit of data and see if we can find a packet. */
85         if (serial_stream_detect(serial, buf, &len, 25,
86                         appa_55ii_packet_valid, 500, 9600) != SR_OK)
87                 goto scan_cleanup;
88
89         sr_info("Found device on port %s.", conn);
90
91         sdi = g_malloc0(sizeof(struct sr_dev_inst));
92         sdi->status = SR_ST_INACTIVE;
93         sdi->vendor = g_strdup("APPA");
94         sdi->model = g_strdup("55II");
95         devc = g_malloc0(sizeof(struct dev_context));
96         devc->data_source = DEFAULT_DATA_SOURCE;
97         sdi->inst_type = SR_INST_SERIAL;
98         sdi->conn = serial;
99         sdi->priv = devc;
100
101         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T1");
102         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T2");
103
104         devices = g_slist_append(devices, sdi);
105
106 scan_cleanup:
107         serial_close(serial);
108
109         return std_scan_complete(di, devices);
110 }
111
112 static int config_get(uint32_t key, GVariant **data,
113         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
114 {
115         struct dev_context *devc = sdi->priv;
116
117         (void)cg;
118
119         switch (key) {
120         case SR_CONF_LIMIT_SAMPLES:
121         case SR_CONF_LIMIT_MSEC:
122                 return sr_sw_limits_config_get(&devc->limits, key, data);
123         case SR_CONF_DATA_SOURCE:
124                 *data = g_variant_new_string(data_sources[devc->data_source]);
125                 break;
126         default:
127                 return SR_ERR_NA;
128         }
129
130         return SR_OK;
131 }
132
133 static int config_set(uint32_t key, GVariant *data,
134         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
135 {
136         struct dev_context *devc;
137         int idx;
138
139         (void)cg;
140
141         devc = sdi->priv;
142
143         switch (key) {
144         case SR_CONF_LIMIT_SAMPLES:
145         case SR_CONF_LIMIT_MSEC:
146                 return sr_sw_limits_config_set(&devc->limits, key, data);
147         case SR_CONF_DATA_SOURCE:
148                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
149                         return SR_ERR_ARG;
150                 devc->data_source = idx;
151                 break;
152         default:
153                 return SR_ERR_NA;
154         }
155
156         return SR_OK;
157 }
158
159 static int config_list(uint32_t key, GVariant **data,
160         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
161 {
162         switch (key) {
163         case SR_CONF_SCAN_OPTIONS:
164         case SR_CONF_DEVICE_OPTIONS:
165                 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
166         case SR_CONF_DATA_SOURCE:
167                 *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
168                 break;
169         default:
170                 return SR_ERR_NA;
171         }
172
173         return SR_OK;
174 }
175
176 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
177 {
178         struct sr_serial_dev_inst *serial;
179         struct dev_context *devc;
180
181         serial = sdi->conn;
182         devc = sdi->priv;
183
184         sr_sw_limits_acquisition_start(&devc->limits);
185
186         std_session_send_df_header(sdi);
187
188         serial_source_add(sdi->session, serial, G_IO_IN, 50,
189                         appa_55ii_receive_data, (void *)sdi);
190
191         return SR_OK;
192 }
193
194 static struct sr_dev_driver appa_55ii_driver_info = {
195         .name = "appa-55ii",
196         .longname = "APPA 55II",
197         .api_version = 1,
198         .init = std_init,
199         .cleanup = std_cleanup,
200         .scan = scan,
201         .dev_list = std_dev_list,
202         .dev_clear = std_dev_clear,
203         .config_get = config_get,
204         .config_set = config_set,
205         .config_list = config_list,
206         .dev_open = std_serial_dev_open,
207         .dev_close = std_serial_dev_close,
208         .dev_acquisition_start = dev_acquisition_start,
209         .dev_acquisition_stop = std_serial_dev_acquisition_stop,
210         .context = NULL,
211 };
212 SR_REGISTER_DEV_DRIVER(appa_55ii_driver_info);